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**Product Description:**
This **Sanitary Stainless Steel Non-Return Valve** is designed for high-quality applications in the **food, beverage, pharmaceutical, and cosmetic industries**. It meets multiple international standards such as **3A, SMS, DIN, IDF, and ISO**, ensuring compatibility with various global systems.
Available in sizes from **1/2" to 4" (DN15 to DN100)**, it offers flexible installation options including **welded, clamped, threaded, and union connections**. The valve features a **bellows globe design** that ensures tight sealing and reliable performance in **reversing flow conditions**.
The **seal materials** used are **silicone, EPDM, Viton, and NBR**, providing excellent resistance to temperature and chemical exposure. The internal surface finish is polished to **Ra ≥0.4–0.8μm**, while the external surface reaches **Ra ≥0.8–1.6μm**, meeting sanitary and hygienic requirements.
With a working pressure range of **0–10 Bar** and a temperature range of **-10°C to +120°C**, this valve is ideal for use in **fluid pipelines where backflow prevention is essential**. It is commonly used in **stainless steel piping systems** to ensure **safe and efficient operation**.
Packing is typically done in **bubble wrap within a carton**, but custom packaging can be arranged based on customer needs.
**Key Features:**
- High-quality stainless steel construction (SS304 or SS316L)
- Multiple connection types for easy integration
- Wide range of seal materials for different media
- Designed for hygienic environments and food-grade applications
- Complies with international standards for safety and performance
Whether you're looking for a **check valve, swing check valve, or spring check valve**, this product is a reliable choice for your industrial or commercial system.
Non Return Valve, Swing Check Valve, Spring Check Valve
Sealing Form: Bellows Globe Valve
Flow Direction: Reversing
Standard: 3A
Application: Dairy, Food, Beverage, Pharmaceutical, Cosmetic, and Liquid Processing
Power: Manual
Connection Type: Welded, Clamp, Threaded, or Union
Seal Material: Silicone, FKM (Viton), EPDM, and NBR
Standards Compliance: SMS, 3A, DIN, IDF, RJT, and ISO
Maximum Pressure: 10 Bar
Media Temperature: Normal Temperature Range
Surface Treatment: Standard Polished Finish
Brand: QM Stainless
Packaging: Bubble wrap inside a carton box, or custom packaging available
Size Range: 9mm – 200mm or DN15 – DN100
Origin: Wenzhou, Zhejiang, China
HS Code: 8481300000